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No Model.)

W. H. D. JONES.

KNIFE CLEANING MACHINE. No. 281,885: Patented July 24,1883.

PETERS. Phmwl thognphm'. Wuhinginn. n. c.

UNiTED STATES PATENT OFFICE.

1 WILLIAM H. n. JONES, or BRIXTON, COUNTY or SURREY, ENGLAND.

. KNIFE-CLEANING MACHINE.

SPECIFICATION forming part of Letters Patent No. 281,885, dated July 24,1883.

. Application filed January 85, 1883. (No model.) I Patented in EnglandFebruary 4, 1882, N0. 552, and in France July 27, 1882,

To all whom it may concern:

Be it known that I, WILLIAM HENRY DIN- HAM J QNES, a citizen of England,residing at BriXton, in the county of Surrey, England, have inventedanew or Improved Knife-0leaning Machine, (for which I have obtainedpatcuts in Great Britain, No. 552, dated February 4, 1882, and inFrance, No. 150, 340, dated July 27, 1882,) of which the following is aspecification.

This invention relates to certain improvements in knife-scouringmachines; and it consists in the construction and arrangement of parts,which will be hereinafter described, and particularly pointed out in theclaim.

In the accompanying drawings, Figure 1 rep resents a side view of myimproved device, and Fig. 2 a horizontal section of the same.

A A indicate two disks of steel or other elastic material, and havingradial arms a a. Said disks are of a slightly concavo-conveX form attheir central portions, and are mounted, with their concave facesadjoining, upon a shaft having bearings in a suitable frame. Upon theinner faces of said disks are secured two disks, B B, of leather orequivalent material. Said leather disks are secured to the steel disksby means of rivets b, which pass through both the steel and leatherdisks, and at a point within the concavo-convex portion of the disks, asshown in Fig. 2, whereby they are kept free from contact with the knifein the operation of cleaning. The two disks of leather are con stantlypressed toward each other by means of the radial arms a a, formed ofelastic metal, as before described andthe disks A A are so arrangedrelatively to each other that each radial arm a shall be opposite thespace be tween two radial arms a a and vice versa, whereby the twoleather disks are firmly and evenly pressed together throughout theirentire peripheries. In order .to save material,

the two leather disks may, if desired, be out out at their centers, asshown in Fig. 2. The

shaft carrying the disks is made hollow, and 5 provided with an opening,P, through which is introduced the polishing material, said openinghaving a suitable stopper or plug. The

shaft is also provided with one or more perforations, through which thepowder escapes to the inner faces of the scouring-disks as the shaft isrotated by means of a crank or otherwise. To the frame in which theshaft has its bearings is secured an arm, D, which projects out to theperiphery of the disks, and is bent, as shown, to serve as a support forthe knife being cleaned.

The operation of my devicewill be readily understood. The polishingpowder having been placed in the hollow shaft, the knife to be cleanedis inserted between the two leather disks, and the disks are thenrapidly rotated. The radial spring-arms, arranged as before described,press the peripheries of the disks B B firmly and evenly together, andthe knife, be-

ing thrust in and out between the rapidly-rotating disks, is quickly andthoroughly cleaned and polished.

Having thus described my invention, what I claim is 7 In combinationwith the elastic disks A A, mounted upon a shaft, and having radialspringarms a a, said disks being so arranged relatively to each otherthat the radial arms shall alternate, as described, the scouring-disks BB, of leather or equivalent material, secured to the inner faces of saiddisks A A, the whole constructed and arranged substantially as described.

In testimony whereof Ihave signed my name to this specification, in thepresence of two subscribing witnesses, this 2d day of January, A D.1883.

w. H. n. JONES.

